TECMAR
MAESTRO
|
Card Type |
Multi-I/O |
|
Chipset |
Unidentified |
|
Maximum Onboard Memory |
2.5MB DRAM |
|
I/O Options |
Parallel port, serial port |
|
Data Bus |
8-bit ISA |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Serial port |
CN1 |
Parallel port |
CN2 |
|
Note:A DB-25 connector for the serial port attaches to the board via a 26-pin header. The location of this header is unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
Factory configured - do not alter |
JPR |
Unidentified | |
|
PARALLEL PORT ADDRESS | ||
|
Setting |
SW1/4 |
SW1/5 |
|
LPT1: |
Off |
On |
|
LPT2: |
On |
Off |
|
Disabled |
On |
On |
|
SERIAL PORT ADDRESS AND INTERRUPT | ||||||
|
Address |
IRQ |
JPR6/A |
JPR6/B |
JPR6/C |
SW1/6 |
SW1/7 |
|
3F8h (COM1:) |
4 |
Open |
Closed |
Open |
Off |
Off |
|
2F8h (COM2:) |
3 |
Closed |
Open |
Open |
On |
Off |
|
3E8h (COM3:) |
4 |
Open |
Open |
Closed |
On |
On |
|
2E8h (COM4:) |
3 |
Open |
Open |
Closed |
Off |
On |
|
Note:Both the 9-pin and 25-pin connectors access the same serial port. | ||||||
|
SERIAL PORT CONFIGURATION | |
|
Setting |
JPR4 |
|
DTE |
Pins 1 & 2, 3 & 4, 6 & 7, 8 & 9, 11 & 12, 13 & 14 closed |
|
DCE |
Pins 2 & 3, 4 & 5, 7 & 8, 9 & 10, 12 & 13, 14 & 15 closed |
|
DRAM (256KB ON MAINBOARD) | |||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
Bank 4 |
|
0KB |
None |
None |
None |
None |
None |
|
128KB |
None |
(18) 64K x 1 |
None |
None |
None |
|
256KB |
None |
(18) 64K x 1 |
(18) 64K x 1 |
None |
None |
|
384KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
None |
None |
|
512KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
None |
|
640KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
|
896KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 256K x 1 |
None |
|
1408KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
|
DRAM SWITCHES (256KB ON MAINBOARD) | |||
|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
|
0KB |
Off |
On |
On |
|
128KB |
Off |
On |
Off |
|
256KB |
Off |
On |
Off |
|
384KB |
Off |
On |
Off |
|
512KB |
Off |
On |
Off |
|
640KB |
Off |
On |
Off |
|
896KB |
Off |
Off |
Off |
|
1408KB |
Off |
Off |
Off |
|
DRAM (512KB ON MAINBOARD) | |||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
Bank 4 |
|
0KB |
None |
None |
None |
None |
None |
|
128KB |
(18) 64K x 1 |
None |
None |
None |
None |
|
256KB |
(18) 64K x 1 |
(18) 64K x 1 |
None |
None |
None |
|
384KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
None |
None |
|
512KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
None |
|
640KB 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
|
640KB 2 |
(18) 64K x 1 |
(18) 256K x 1 |
None |
None |
None |
|
1152KB |
(18) 64K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
None |
None |
|
1664KB |
(18) 64K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
None |
|
2176KB |
(18) 64K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
|
DRAM SWITCHES (512KB ON MAINBOARD) | |||
|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
|
0KB |
Off |
On |
On |
|
128KB |
On |
On |
Off |
|
256KB |
On |
On |
Off |
|
384KB |
On |
On |
Off |
|
512KB |
On |
On |
Off |
|
640KB 1 |
On |
On |
Off |
|
640KB 2 |
On |
Off |
Off |
|
1152KB |
On |
Off |
Off |
|
1664KB |
On |
Off |
Off |
|
2176KB |
On |
Off |
Off |
|
DRAM (640KB ON MAINBOARD) | |||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
Bank 4 |
|
0KB |
None |
None |
None |
None |
None |
|
128KB |
(18) 64K x 1 |
None |
None |
None |
None |
|
256KB |
(18) 64K x 1 |
(18) 64K x 1 |
None |
None |
None |
|
384KB |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
None |
None |
|
512KB 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
None |
|
512KB 2 |
None |
(18) 256K x 1 |
None |
None |
None |
|
1MB 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 64K x 1 |
(18) 256K x 1 |
|
1MB 2 |
None |
(18) 256K x 1 |
(18) 256K x 1 |
None |
None |
|
1.5MB |
None |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
None |
|
2MB |
None |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
|
2.5MB |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
(18) 256K x 1 |
|
DRAM SWITCHES (640KB ON MAINBOARD) | |||
|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
|
0KB |
Off |
On |
On |
|
128KB |
Off |
Off |
On |
|
256KB |
Off |
Off |
On |
|
384KB |
Off |
Off |
On |
|
512KB 1 |
Off |
Off |
On |
|
512KB 2 |
On |
Off |
On |
|
1MB 1 |
Off |
Off |
On |
|
1MB 2 |
On |
Off |
On |
|
1.5MB |
On |
Off |
On |
|
2MB |
On |
Off |
On |
|
2.5MB |
On |
Off |
On |